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RENDERPLAS Sustainability In The External Envelope

A well-known and commonly used component of external wall coverings has wrongly remained misunderstood for almost 20 years. And it shouldn’t stay this way. It has a carbon cost that’s just a fraction of its steel rivals.
It is widely understood that external wall insulation (EWI) systems and external render can dramatically improve U-values for buildings, but if you’re still using old fashioned steel beads in their application you’re certainly not adding anything to the carbon benefits that these systems offer.
Figures from DEFRA indicate that the UK produces over 70M tonnes of CO2 a year constructing buildings and we then use 140M tonnes of CO2 every year in them. Developers give buildings an external wall covering to reduce energy use and make them look good, so why not apply this logic to the materials we use to cover them?
RENDERPLAS have been at the forefront of design and manufacture of PVCu render beads since 1990 and now lead the way creating wall covering components in sustainable, environmentally sensitive ways. The case for RENDERPLAS over stainless steel is clearly made.
Environmental comparison is simple; making 1 tonne of typical stainless steel generates 3.6 tonnes of CO2; making a tonne of virgin PVCu = 1.9 tonnes of CO2; making a tonne of PVCu for RENDERPLAS a tiny percentage of that.
PVCu beads supplied worldwide by RENDERPLAS use a startling 96% recycled material. This means that when RENDERPLAS produces 1 tonne of render beads it generates significantly less CO2 compared to rival manufacturers using virgin PVCu or metal.


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Hill Farm, Linton Hill, Maidstone, Kent ME 17 4AL
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